Michael Case

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Mississauga, CA

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Patents Grantslast 30 patents

Information Patent Grant
High-productivity drill bits
- Patent number 9,784,038
- Issue date Oct 10, 2017
- Longyear TM, Inc.
- Michael Case
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
HIGH-PRODUCTIVITY DRILL BITS
- Publication number 20140367171
- Publication date Dec 18, 2014
- Longyear TM, Inc.
- Michael Case
- E21 - EARTH DRILLING MINING